#app :is(.btn) {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(4, minmax(0, 1fr));
}
#app :is(.btn:hover) {
  border-width: 1px;
  --un-bg-opacity: 1;
  background-color: rgb(255 255 255 / var(--un-bg-opacity));
}
